Polymer injection benefited oil well lifting process technology matching mode optimizing method and device

A process technology and model technology, applied in the direction of earthwork drilling, wellbore/well components, production fluid, etc., to achieve the effect of simple analysis process, simple calculation method, and avoidance of intervention

CN107780907AInactive Publication Date: 2018-03-09PETROCHINA CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2018-03-09
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a polymer injection benefited oil well lifting process technology matching mode optimizing method and device, and belongs to the technical field of oil exploitation. The methodincludes the steps that based on the corresponding lifting process matching scheme under each lifting process technology matching mode of an oil well, one-time input cost and single-well daily maintenance cost under each lifting process technology matching mode are determined, oil well production data is combined to obtain profit and loss balance period analysis basic parameter values, the profitand loss balance period value and the production input-output ratio of the oil well under each lifting process technology matching mode are calculated, and the lifting process technology matching mode with the lowest production input-output ratio is obtained. By means of the economic analysis and evaluation mode, the production input-output ratio is used for comparison to obtain the optimal lifting process technology matching mode, the adaptability and economic feasibility of the oil well lifting process are improved, artificial experience intervention is avoided, the calculation method is convenient, the analysis process is simple, and the polymer injection benefited oil well lifting process technology matching mode optimizing method is suitable for all oil production technical engineersto conduct analysis and application.
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Description

technical field

[0001] The invention relates to the technical field of petroleum exploitation, in particular to a method and device for optimizing matching modes of oil well lifting technology benefiting from polymer injection. Background technique

[0002] As most of the old oilfields in my country, such as Daqing Oilfield and Shengli Oilfield, enter the middle and late stage of development, the output gradually decreases, and the comprehensive water content continues to rise. How to stabilize oil production and maximize the recovery factor has become a constraint on the development of oilfields. important bottlenecks. As the most mature and effective tertiary oil recovery technology, polymer flooding can significantly increase the recovery rate, and the field test effect is obvious, and a series of supporting lifting technology matching models have been formed.

[0003] The selection of the matching mode of the existing lifting technology for oil wells benefiting from poly...

Examples

Embodiment 1

[0092] This embodiment provides a method for optimizing the matching mode of lifting technology for oil wells benefited from polymer injection, see figure 1 , the method flow is as follows:

[0093] Step 101: Determine the one-time input cost and the daily maintenance cost of a single well in each lifting technology matching mode based on the corresponding lifting technology matching scheme of the oil well in each lifting technology matching mode, and combine the production data of the oil well Get the basic parameter value of break-even cycle analysis;

[0094] Specifically, the one-time production input costs include: pumping unit costs, sucker rod costs, tubing costs, oil well pump costs, Christmas tree costs, motor device costs and other ancillary tool costs;

[0095] Single well daily maintenance costs include: production and operation costs, water injection costs and polymer injection costs;

[0096] The basic parameter values ​​of break-even cycle analysis include: on...

Embodiment 2

[0114] This embodiment provides a method for optimizing the supporting mode of the lifting process technology of a polymer injection benefit oil well. Taking a certain X polymer injection benefit oil well as an example, the method provided in this embodiment is described in detail. See figure 2 , the method flow is as follows:

[0115] Step 201: According to the well type and well condition of the oil well benefiting from polymer injection, determine the supporting mode of the lifting technology of the oil well;

[0116] Among them, the supporting modes of lifting technology applicable to oil wells benefiting from polymer injection include:

[0117] Concentric double-pipe sand-carrying oil recovery technology matching model;

[0118] Supporting mode of screw pump lifting technology;

[0119] Long-stroke low-stroke pumping unit + low-resistance and wear-resistant rod righting + low-resistance and wear-resistant rod coupling + large channel offset valve (inclined well) pump +...

Embodiment 3

[0179] This embodiment provides an optimized device for matching mode of lifting process technology for oil wells benefited from polymer injection, see image 3 , the device specifically includes:

[0180] The data preparation module 301 is used to determine the one-time input cost and daily maintenance cost of a single well under each lifting technology matching mode based on the corresponding lifting technology matching scheme of the oil well in each lifting technology matching mode, and Combined with the production data of the oil well to obtain the basic parameter value of the break-even cycle analysis;

[0181] The first calculation module 302 is used to analyze the basic parameter value based on the break-even cycle of each lifting technology matching mode, and calculate the break-even cycle value of the oil well under each lifting technology matching mode;

[0182] The second calculation module 303 is used to calculate the production input-output ratio of each lifting ...